Abstract: Radiation protection evaluation of 3.0 MeV electronic accelerator generator room was conducted in a cable company in the Hengyang city. According to the protection evaluation requirements and the design of the generator room, source of radiation in the generator was analyzed and the shielding effectiveness was theoretically calculated. Combining the theoretically shielding effectiveness and actual monitoring results, the shielding design of electron irradiation accelerator room and radiation protection facilities meet the requirements of the state regulations.

Key words: electric cable, electron accelerator, radioprotection, evaluation